What are the responsibilities and job description for the SCADA Network Technician (Public Works) position at City of Pflugerville?
Under general direction, the SCADA Network Technician provides technical support for the City’s Water and Wastewater Operational Technology (OT) and Supervisory Control and Data Acquisition (SCADA) systems. This position performs routine installation, configuration, monitoring, troubleshooting, and maintenance of SCADA-related network equipment, servers, and communications at plants and remote facilities. This includes industrial switches, cellular routers, fiber networks, firewalls, secure remote access, and SCADA server connectivity.
Work involves following established procedures, documenting system changes, and assisting with network and SCADA equipment upgrades. The technician supports operators, plant staff, and vendors by ensuring reliable connectivity and communications for PLCs, HMIs, servers, and related OT equipment. Duties include regular fieldwork, responding to service requests, providing support during outages and scheduled maintenance, and assisting with ongoing modernization projects, including network segmentation, fiber ring improvements, cellular upgrades, and cybersecurity initiatives. This position requires practical problem-solving, attention to detail, and effective coordination with operators, technicians, and vendors.
- Install, configure, and maintain SCADA network hardware, including industrial switches, routers, cellular modems, and fiber connections, following established guidelines.
- Monitor SCADA network performance, device status, alarms, and connectivity using approved tools.
- Assist with updating IP addresses, VLANs, subnets, and device configurations under the direction of supervisory or senior technical staff.
- Perform routine firmware updates, backups, configuration checks, and preventative maintenance.
- Support SCADA servers, PLC/HMI communications, and network reliability through troubleshooting and repair tasks.
- Respond to service tickets, user requests, and field support needs at the water/wastewater plant and remote sites.
- Document work performed, configuration changes, wiring updates, network diagrams, and equipment inventory.
- Assist in SCADA and OT modernization efforts such as equipment replacements, network segmentation tasks, and device upgrades.
- Follow established cybersecurity procedures, device hardening steps, and secure remote access instructions as directed.
- Participate in disaster recovery testing, redundancy checks, and scheduled network maintenance activities.
- Communicate effectively with operators, technicians, vendors, and supervisors regarding system status, issues, and scheduled work.
- Perform other related duties as assigned.
Formal Education: Associate degree in Networking, Information Technology, Operational Technology, or related field; or equivalent technical training.
Relatable Work Experience: Three (3) years of related technical experience in networking, SCADA/OT support, or a similar field.
Training, Licenses, and Certifications: Networking, IT, or cybersecurity certifications such as CCNA, Network , Security , Moxa Industrial Networking, or related OT/ICS certifications. Valid Texas Driver's License.
Required Qualifications: Experience in municipal water/wastewater operations, SCADA systems, OT modernization, or Moxa equipment.
Disclaimer: Unless otherwise stated, applicants are permitted to substitute two years of related full-time experience for one year of higher education or one year of related higher education for two years of experience in order to meet the minimum requirements of the job. One year of full-time experience is defined as 30 or more hours worked per week for 12 months. One year of higher education is defined as 30 credit hours completed at an accredited college or university.
Solid working knowledge of industrial networking, VLANs, routing, redundancy concepts, and basic network configuration.
Knowledge and hands-on experience with cellular communication, private LTE, modem failover, and secure remote access tools.
Understanding of SCADA architectures, PLC/HMI communication methods, and SCADA/SQL server connectivity.
Basic understanding of OT cybersecurity practices and secure network segmentation principles.
Knowledge of standard practices in network administration, user access procedures, and security guidelines.
Familiarity with technology systems, hardware integration, and routine system support processes.
Ability to present information clearly and respond to questions from managers, staff, and vendors.
Ability to follow established procedures and complete tasks with minimal direct supervision.
Ability to apply problem-solving skills and sound judgment within defined guidelines and procedures.
Ability to handle multiple tasks or assignments on time.
Skill in troubleshooting hardware, software, and SCADA network equipment using standard diagnostic methods.
Ability to provide effective and courteous customer service to employees at all organizational levels.
Ability to identify and resolve network or system issues across multiple platforms using established tools and procedures.
Strong verbal and written communication skills and ability to maintain positive working relationships with City staff, external agencies, and vendors.
Work may involve office, plant, and field environments, including confined spaces and outdoor areas.
Ability to lift and carry up to 50 lbs. of equipment.
Visual acuity, speech, hearing, manual dexterity, and hand-eye coordination required to operate tools and equipment.
Regular 40-hour workweek, Monday–Friday, with occasional overtime as needed.
Must be available for after-hours callouts during SCADA/network outages or emergencies.
Salary : $63,230 - $79,040